广梅汕铁路电气化改造的生态足迹分析

根据我国机车能耗统计资料、电力年度统计数据,从生态足迹角度定量地分析了广梅汕铁路电气化改造前后机车牵引能耗、CO₂排放量和能耗生态足迹.广梅汕铁路电气化改造前,采用内燃机车牵引客货列车,每年需要直接耗用柴油1.74×10⁴t,每年向大气排放5.50×10⁴t CO₂,其总生态足迹为1.27×10⁴hm²森林,平均生态足迹为每万吨公里0.018 hm²森林.电气化改造后,每年需耗电1.05×10⁸ kw·h,间接导致火电厂每年排放8.45×10⁴tCO₂,间接导致的火电总生态足迹为1.96×10⁴hm²森林,间接导致的水电总生态足迹为36.37hm²可耕地,平均间接生态足迹为每万吨公里0.021hm²森林和3.91×10^-5hm²可耕地.

The ecological footprint analysis of railway electrification reconstruction for Guangzhou-Meizhou-Shantou railway

Based on the locomotive energy consumption data and state power statistic reports,we quantitatively analyzed the locomotive energy consumption,CO₂ emission and its ecological footprint before and after electrification reconstruction of the Guangzhou-Meizhou-Shantou railway.Before the electrification reconstruction,the diesel locomotive tractions would annually consume 17.4 kiloton diesel oil and produce 55.0 kiloton CO₂ emission,the total ecological footprint of diesel oil consumed were 12.7 kilo-hectare forest,and the averaged ecological footprint were 0.018 hectare forest per 10 kiloton-km.After the electrification reconstruction,the electric locomotive tractions would annually consume 1.05×10⁸ kw·h power and indirectly produce 84.5 kiloton CO₂ emission in thermal power plants,the total indirectly induced ecological footprint were 19.6 kilo-hectare forest for thermal power,36.37 hectare arable land for hydropower,and the averaged ecological footprint were 0.021 hectare forest and 3.91×10^-5 hectare arable land per 10 kiloton-km.